Snowplow



Aug. 13, 1929. R. MAUST v1,724,494

SNOWPLOWA Filed April 20, 1928A 4 Sheets-Sheet l.l

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SNOWPLOW 4 Sheets--Sl'xeel 2 Filed Apr'l 20. 1928 gnvenlor N ,barijYau/s .D nl HATE.,

Aug. 13, 1929. A R. MAUST 1,724,494

SNOWPLOW Filed April 20, 1928 4 Sheets-Sheet 5 -rS m lzfoberi Mausi mfrI Mr` R. MAUST sNowPLOw Aug. 13, 1929.

Filed April 20, 1928 4 Sheets- Sheet 4 gllwentof NJA..."

"" Hobefz Mame @Hamai Patented Aug. i3, i929.,

hlltllpll@ 'STATES ROBERT IVIAUST, OF ELKTON, SOUTH DAKOTA.

SNOWPLOW.

Application filed April 20, 1928. Serial No. 271,538.

The present invention relates to a snow plow and has for its primaryobject to provide a structure capable of being mounted to the front ofthe tractor and propelled thereby and -having a driving connection fromthe pulley of the tractor so that the operating mechanism in the plowmay be run at a uniform rate of speed regardless as to how fast thetractor is moving.

Another very important object of the invention resides in the provisionof a snow plow of this nature having a transversely operating augerconveyor and an velevator leading therefrom in combination with rotarychoppers in advance of the conveyor to break up the snow and ice insufficiently small pieces to be taken care of by the auger conveyorwithout any tendency to clog the same. j

A still further very .important object of the invention resides in theprovision of ice choppers which are easy to assemble and disassemble inrelation to their operating shafts. f

Another important feature of the invention resides in means forelevating the plow in respect to the tractor,.said means being operablein a convenient manner by the driver of the tractor. r 1

A still further very important object of the invention resides in theprovision of a snow plow of this nature which is simple in itsconstruction, strong and durable, thoroughly eflicient and reliable inoperation, not 35 likely to easily become out of order and otherwisewell adapted to the purpose for which it is designed.

With the above and numerous-other objects in view as willv appear as thedescrip- 40 tion proceeds, the invention resides in certain novel,features of construction, and in the combination and arrangement ofparts as will be hereinafter more fully described and claimed. l

In the drawings:

Figure 1 is a side elevation of a snow plow embodying the features of myinvention showing the same mounted at the front of the tractor, p Figure2 is a fragmentary plan view of the attachment frame7 l l Figure 3 is adetail sectional 'View through a portion thereof,

Figure t is anoenlarged side elevation of 55 the plow showing a coverplate removed.

Figure 5 is a fragmentary detail Vperspeczontal Vtransverse conveyorcasing the rear Y wall ofwhich is substantially semi-cylindrical asindicated at 5 and merges into a flat bottom wall 6 with a scraper blade7 secured thereto. The upper edge of the rear wall 5 merges into a wall8 which extendsy up-l` wardly` and inclines slightly rearwardly. Thefront of this horizontal transverse conveyor casing is open. An auger 9is .journaled in the conveyor casing and is con- .structed so that thespiral at one endy is more pronounced as is indicated to advantage inFigure 8. Side plates lO'areprovide'd at the ends of the vtransversehorizontal conveyor casing and extend vertically and longitudinally ofthe apparatus.

These plates taper to points at their front f ends as is indicated toadvantage in Figures land 6 and in these pointsis journaled a shaft 11formed with longitudinally eX- tending channels 12. As is indicated toadvantage in Figurek 8 ythe shaft l1 extends through longitudinal slots.14 in the plates 10 and is journaled in bearings 15 adjustableforwardly and rearwardly by screws 16. On the shaft 11 there aredetachably mounted a plurality of clog breakers 17 of elongated curvedconstruction as is indicated to advantage in Figures l and 2. v

rl`heseV clog breakers are held on the shaft by means of tap plates 18which are secured tothe clog breakers by bolts 19 or in any otherdetachable manner. Both the clog breakers and the tap plates haveprojections 2O to lit in the channel 12 so asto key the clog breakersonthe shaft 11.

yA cylindrical elevator casing 22 communi- Cates through an opening-23in one end plate l10 with the horizontal conveyor casing ,and inclinesupwardly and rearwardly. The

end wall 10 is provided with walls 23 to form a casing with a removablecover 24. An outlet trough 25 is provided on ythe upper end of theelevator casing 22 and depends 4downwardly to one side. An auger 26 isrotatable in the casing 22 for elevating the snow which is deliveredthrough the opening 23 into the bottom of the casing 22 so that the snowmay be delivered into a wagon running alongside the apparatus.

A U-shaped frame 27 is fastened to the frame of the tractor T. The endsof the frame 27 are straddling the tractor frame and bolted or otherwisesecured theretoso that the bight of the attachment frame is disposed infront of the tractor frame. A pair of rods 28 are pivoted to the frame27 one on each side thereof as at 29 and are pivoted as at 30 to thesides of the plow apparatus. An arm 31 is secured to the horizontalconveyor casing and inclines upwardly and rearwardly and terminates in asubstantial horizontal extension 32. Bearings 33 are fixed on theextension 32 and have journaled therein a shaft 34 with a` worm 35thereon meshing with a worm gear 36 fixed on a screw shaft 37 whichextends through an opening 38 in the extension 32 and is threaded in across plate 39 on the frame 27.

This cross plate 39 is bolted to the frame as at 40 and is provided withopenings 41 to accommodate different sized frames. The pivot means 29 isin the form of a rockable shaft in bearings 42 on the frame 27. A shaft44 in telescopically associated sections is coupled with the shaft 34 bya universal joint 45. The shaft 44 is coupled by universal point 46 witha shaft 47 journaled in brackets 48 and 49 with a wheel 50 at the upperend thereof.

Obviously by turning the wheel 50 the worm 35 may be actuated forturning the worm gear 36 and the screw shaft 37 thus elevating or movingdown the extension 32 and the arm 31.

In this manner, obviously, the plow apparatus may be raised or loweredby swinging about the pivot shaft 29. A shaft 52 is journaled throughthe plate 10 to the rear of the plate 8 and has a pulley 53 thereon overwhich is trained a belt 54 also trained about the pulley 55 of thetractor power takeoff. Suitable spring belt tightening means 56 isassociated with the belt 54. Particular means herein comprises bracketarms 57 projecting rearwardly from the plate 8 and rockably supportingarms 58 with the roller 59 journaled therein engaging the belt being sourged by springs 60.

A sprocket 61 is i'iXed on one end of the shaftV 52 in the casing 24 anddrives the chain 62 which is trained over a sprocket 63 on the end ofthe shaft 11 in the casing 23. This chain 62 also drives a sprocket 64by the intermediate portions of its upper and lower runs engaging saidsprocket 64. This sprocket 64 is fixed on a shaft 65 to which is fixed abevel gear 66. The bevel gear 66 meshes with the bevel pinion 67 on avertical shaft 68 journaled in suitable bearings 69 and having a bevelpinion 70 on the lower end thereof meshing with the bevel pinion 71 onthe lower end of the shaft of the auger 26. The shaft of the auger 9 isoperatively connected with the shaft 65 by chain and sprocket means 72with which is associated a suitable chain tightener 73. The chain 62 mayobviously be tightened by adjustments 16.

When the tractor T is advancing and the pulley 55 is in operation itwill be seen that the clog breakers revolve and break up the snow andice to proper size to be taken care of by the horizontal conveyor. Snowand ice are brought up by the scraper and caused to engage the auger inthe horizontal casing so that the snow is delivered through the opening23 into the elevator up which it passes and is delivered out through thechute 25 into a wagon progressing alongside of the tractor or into anysuitable receptacle or th like.

The plow apparatus may be readily adjusted to the desired height by theoperator of the tractor in a convenient manner because of the locationof the wheel 50. This plow apparatus will clear a relatively wide pathand, therefore, is particularly useful in cleaning snow from the roadwayand the like.

It is thought that the construction, opera-u tion and advantages of theinvention will now be quite apparent to those skilled in this artwithout a more detailed description thereof. The present embodiment ofthe invention has been disclosed in detail merely by way of examplesince in actual practice it attains the features of advantage enumeratedas desirable in the statement of the ini vention and the abovedescription. It will be apparent that changes in the details ofconstruction, in the size, and combination and arrangement of parts maybe resorted to without departing from theA spirit or scope of theinvention as hereinafter claimed.

Having thus described my invention, what I claim as new is:

1. In a snow plow apparatus, a transverse conveyor, clog breakers -infront of the' conveyor, an elevator inclining upwardly and rearwardlyfrom one end of the conveyor, a frame for attachment to the front of atractor, rods pivoted to the frame and the apparatus, a screw shaftthreadedly mounted in the frame, an arm secured to the apparatus, saidshaft extending through the arm, and gearing for rotating the shaft sothat the arm may be raised and lowered for swinging the apparatus inrespect to the ground.

2. In combination, a snow plow apparatus, a frame for attachment to thefront of a tractor, a cross plate on the frame, a shaft journaledthrough the cross plate, an arm attached to the apparatus and incliningupwardly and rearwardly, a screw shaft threaded in the plate andextending through the arm, a worm gear on the shaft, a worm lon the armmeshing with the worm gear,

means for operating the worm, and means for swingably mounting theapparatus on the frame.

3. In a snow plow apparatus, a horizontal transverse conveyor casinghaving its front open, a scraper at the bottom of the easing, sideplates on the casing, said side plates tapering forwardly, a shaftjournaled between the forward ends of the plates, clog breakers on saidshaft, an auger in said easing, one of the plates having an opening, acylindrical elevator casing communicating with the opening at its bottomend and inclining upwardly and rearwardly, an auger in the cylindricalcasing, and means for simultaneously operating the auger and the shaft.f

4. In a snow plow apparatus, a horizontal transverse conveyor casinghaving its front open, a scraper at the bottom of theeasing, side plateson the casing, said side plates tapering forwardly, a shaft journaledloetween the forward ends of the plates, clog breakers on said shaft, anauger in said casing, one of the plates having an opening, a cylindricalelevator casing communicating with the opening at its bottom end andinclining upwardly and rearwardly, an auger in the cylindrical casing,and means for simultaneously operating the auger and the shaft, a framefor attachment to a tractor, rods pivoted to the frame and to the sideplates, an arm attached to the conveyor casing, and means for swingingthe apparatus through the arm.

In testimony whereof I aiix my signature.

ROBERT MAUsr

